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发明名称
Valve
摘要
申请公布号
US2602630(A)
申请公布日期
1952.07.08
申请号
US19460699158
申请日期
1946.09.25
申请人
PETSCHKE WALTER S
发明人
PETSCHKE WALTER S.
分类号
F16K31/524
主分类号
F16K31/524
代理机构
代理人
主权项
地址
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